Isotopic Composition of Glacier Ice and Meltwater in the Arid Parts of the Altai Mountains (Central Asia)

Bantcev, Dmitriy; Ganyushkin, Dmitry; Terekhov, Anton; Ekaykin, Alexey; Tokarev, Igor; Chistyakov, К. V.

doi:10.3390/w14020252

Cited by 5 publications

(1 citation statement)

References 21 publications

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“…Ice samples were taken from the ablation zone of the surface of the Bolshaya Taldura glacier at relatively regular intervals. This technique has been used before and has proven itself fit for determining the average isotopic composition of ice [31]. (Seasonal snow was The local meteoric water line (LMWL) was plotted from the event-based precipitation samples for each elevation separately.…”

Section: Isotopic Composition Of Ice and Snowmentioning

confidence: 99%

Water Stable Isotopes in the Central Altai Mountainous Rivers as Indicator of Glacier Meltwater Fraction in Runoff

Bantcev,

Rasputina,

Ovsepian

et al. 2024

Water

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We used stable water isotopes (δ 18O and δ 2H) to identify the fractions of glacier meltwater and summer precipitation in the runoff in the Taldura River in the Altai mountains. The mean isotopic characteristics of glacier ice, snow, summer precipitation and river water were obtained. Using isotopic separation of hydrographs, we determined that glacier feeding completely prevails throughout the Taldura River in the middle of the ablation season. In general, the fraction of glacier meltwater in the Taldura River’s runoff in the ablation season varies from 80% to 95% depending on local weather conditions.

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Section: Isotopic Composition Of Ice and Snowmentioning

confidence: 99%

Water Stable Isotopes in the Central Altai Mountainous Rivers as Indicator of Glacier Meltwater Fraction in Runoff

Bantcev,

Rasputina,

Ovsepian

et al. 2024

Water

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How and when glacial runoff is important: Tracing dynamics of meltwater and rainfall contribution to river runoff from headwaters to lowland in the Caucasus Mountains

Rets,

Khomiakova,

Kornilova

et al. 2024

Science of The Total Environment

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The Use of Isotope Indicators in Hydrological Studies in the Taldura River Basin, Central Altai

Bantcev,

Ovsepyan,

Rasputina

et al. 2023

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Received June 29, 2023; revised August 28, 2023; accepted October 2, 2023Stable isotopes investigation was carried out in the territory of the Yuzhno-Chuya Ridge (Central Altai) during the ablation season of 2022. Samples were taken to determine the contribution of meltwater and precipitation to feeding of water bodies. The main research objects are Nekrasov glacier – Tamozennoye Lake system and Taldura River. In the basin of Lake Tamozennoye, the average ice δ18O of the Nekrasov glacier (‒17.3%) was obtained. Based on the isotopic composition of ice and precipitation, it was estimated that in the stream flowing into Lake Customs, the contribution of glacier meltwater varies from 28 to 67%, on average 54%. For a stream flowing out of a lake, the proportion of meltwater is higher: 48–72, 61% on average. First of all, meltwater enters the lake by filtration through the moraine, and not by surface runoff. Along the Taldura River, δ18O does not change significantly (δ18O –16.58 … –16.84%) for 38 km before the Taldura River confluence into the Chagan River. This indicates the complete predominance of glacier meltwater in the river feeding in the middle of the ablation season. Repeated sampling of water from the Taldura River 5 km from the edge of the glacier showed, that the effect of precipitation can be traced in the isotopic composition of river water, but it does not exceed 20%.

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Isotopic Composition of Glacier Ice and Meltwater in the Arid Parts of the Altai Mountains (Central Asia)

Cited by 5 publications

References 21 publications

Water Stable Isotopes in the Central Altai Mountainous Rivers as Indicator of Glacier Meltwater Fraction in Runoff

Water Stable Isotopes in the Central Altai Mountainous Rivers as Indicator of Glacier Meltwater Fraction in Runoff

How and when glacial runoff is important: Tracing dynamics of meltwater and rainfall contribution to river runoff from headwaters to lowland in the Caucasus Mountains

The Use of Isotope Indicators in Hydrological Studies in the Taldura River Basin, Central Altai

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